Advice small block K frame with Schumacher conversion mounts for a big block

Big Block A body Tech

  1. Bigboy 68

    Bigboy 68 it is what it is

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    I’m not sure but I think I read in another thread that mods need to be done to a small block K frame with using Schumacher big block conversion mounts any help on this would be appreciated
     
  2. 383Duster

    383Duster Well-Known Member

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    You have to cut a notch to clear the oil pump
     
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    • d55dave

      d55dave Well-Known Member

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      Are you starting with a spool or biscuit mount k frame?
       
    • Bigboy 68

      Bigboy 68 it is what it is

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      Biscuit Mount
       
    • mopar65

      mopar65 Well-Known Member

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      '67-72 A-Body B/RB Installation

      On my 73 dart with spool mounts, I also had to drill a new hole on the drivers side mount. But you said Biscuit mounts, so what i said won't matter to you. Don't forget to post pics of your build.
       
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      • 383Duster

        383Duster Well-Known Member

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        My car had a 318 in it, biscuit mounts...just needed the notch for the big block oil pump
         
      • d55dave

        d55dave Well-Known Member

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        Yes, as you have biscuit mounts I believe that you have to notch for the oil pump.
         
        Last edited: Oct 22, 2019
      • Lefty71

        Lefty71 Well-Known Member

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        I dont know if you can zoom in on the detail, and I'll try and find you a better pic, but this is a small block "K" in a '69 with Schumacher biscuit mounts and a notch for the pump.
         
      • Lefty71

        Lefty71 Well-Known Member

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        I dont know if you can zoom in on the detail, and I'll try and find you a better pic, but this is a small block "K" in a '69 with Schumacher biscuit mounts and a notch for the pump.
         
      • Lefty71

        Lefty71 Well-Known Member

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        IMG_20190805_181317472.jpg
         
      • Lefty71

        Lefty71 Well-Known Member

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        IMG_20190805_183627531.jpg
         
      • Princess Valiant

        Princess Valiant A.K.A. Rainy Day Auto

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        Trial fit it before cutting the notch for the oil pump.
        I have done many of these conversations and every k frame is slightly different.

        I had one k frame that didn't require a notch cut at all, the ear sat back far enough that it didn't touch and this was how it was from the factory.

        Others I have done, the template didnt put the notch in the right place or the size of the notch on the template was off.

        Best way is trial fit and mark where your notch is needed with a marker.
         
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        • Dragonsteel

          Dragonsteel Well-Known Member

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          Found a close up of when I did my K-member which was out of a 69' Barracuda with a small block.

          Screen Shot 2019-10-22 at 12.39.16 AM.png
           
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          • Bigboy 68

            Bigboy 68 it is what it is

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            Thank you all much appreciated!!
             
          • carguy47

            carguy47 Well-Known Member

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            I am having a similar problem. The motor is not centered and sits way to the passenger side of the car.
            I have the same setup in my 68 with Schumacher setup.
            Is this normal?
             
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            • Lefty71

              Lefty71 Well-Known Member

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              Have you checked to see if the motor is sitting level in the K-frame, by checking it with the car on a level surface side-to-side, evenly loaded (or unloaded really). There is some room to jockey the biscuits in the K-frame to level it. You should realize that all motors are off center to the passenger side for steering clearance too, right??
               
            • jos51700

              jos51700 Green Bearing thread connoisseur

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              Motor isn't centered in the car. Never was. It's supposed to sit off center.
               
            • AndyF

              AndyF Well-Known Member

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              Is the transmission centered in the tunnel? How about the driveshaft? It is hard to tell from your question whether or not you have an actual problem. The engine is supposed to be offset to the passenger side so you have to measure and look to make sure it is in the correct location.
               
            • A Body 440 WHY NOT

              A Body 440 WHY NOT Well-Known Member

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              pics are great. I will be swing a 440 into my 69 Dart. Did you pick up the engine and trans on the carb plate ? My 440 has alum heads , alum intake ... I am wondering if the engine / trans package is too heavy to pic up with 4 3/8 bolts into alum ? any input ? thanks,
               
            • Lefty71

              Lefty71 Well-Known Member

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              I set the motors in there just like you see, but not with the added weight of the alt/pump and other stuff on the front of the motor. I make sure the bolts are torqued in place for the manifold, and the plate is snugged very well too. Those are iron heads, but aluminum would be no worry if it's all torqued down im sure.
               
            • 69B-Cuda

              69B-Cuda Well-Known Member

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              I put the engine and trans combo with the headers on already onto the k-frame and then lowered the car onto it.

              DSC_1616.JPG

              DSC_1619.JPG
               
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              • carguy47

                carguy47 Well-Known Member

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                I understand it is off center. I have maybe an inch of adjustment and the oil pan hits the K-member. Guess I will just notch the K-member.
                 
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                • A Body 440 WHY NOT

                  A Body 440 WHY NOT Well-Known Member

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                  I was going to drop the engine / trans in from the top. Is this a major prob going in from the top ?
                   
                • pomonamissel

                  pomonamissel Well-Known Member

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                  motor does sit to the passenger side of the bay , and the k frame must be notched for oil pump clearance . this is a slant k frame . with the whole thing welded up and reinforced . now its strong enough for a street a body with a rb powerplant . DSC00217.JPG DSC00218.JPG DSC00219.JPG DSC00220.JPG DSC00221.JPG DSC00222.JPG DSC00223.JPG DSC00224.JPG DSC00225.JPG
                   
                • 69B-Cuda

                  69B-Cuda Well-Known Member

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                  I originally wanted to drop mine in from the top as well, but followed advice on this forum and dropped the k-frame instead. On the plus side, you don't need to take the hood off!
                  Mine is a RB though, so taller than a B engine.(would hit heater motor and brake booster)
                  I can't speak to dropping it in from the top, sorry.
                   
                  Last edited: Nov 25, 2019
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